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<p>The Government is committed to reducing air pollution from all forms of transport,
which has significantly reduced since 2010. Emissions of nitrogen oxides have fallen
by 45% and emissions of PM2.5 by 10% since that date.</p><p>The DVSA Market Surveillance
Unit will continue to conduct a vehicle-emissions testing programme to monitor vehicle
emissions performance and address non-compliance where identified.</p><p>Since 2015,
there have been 134 manufacturer recalls or non-code actions involving a total of
1.85 million vehicles to amend or upgrade emissions systems. Not all action will have
been to address non-compliance.</p>
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